[Lowfer] Selective Voltmeters

Fri, 11 Jan 2002 17:16:38 -0000

Hello Peter

I picked up a Wandel & Golterman SPM-19 last year for about $180
here in the UK.
It covers 200Hz to 26MHz with bandwidths from 25Hz up to 3.1kHz
It has an LCD display down to 1Hz and an LCD display for level
measurements in addition to the normal analogue meter.
The RF circuit design is very similar to a good comms receiver,
with a diode ring mixer in the front end converting up to
40.01MHz and then a second conversion down to 10kHz where the
selectivity is provided.

I reckon that it was a good buy at the price.

Tracey
[email protected]
Lincolnshire
U.K.
-----Original Message-----
From: Peter Barick <[email protected]>
To: [email protected] <[email protected]>
Date: 11 January 2002 16:44
Subject: [Lowfer] Selective Voltmeters

>Hey group,
>
>Topic: Selective Voltmeters / Levelmeters
>
>From time to time these come available for sale. I've not had
any
>experience with them but have heard of them being used on LF by
some of
>the experienced operators. My question, is it risky buying one
of these
>used, as they appear in various markets? My main interest is LF,
say
>10kHz to 600kHz.
>
>Some other issues:
>
>   1. For LF, are some more desirable, while others are of be
avoided?
>
>   2. Is documentation readily available either in manual form
or
>friendly cohort advice on user groups?
>
>   3. I know the axiom "You get what you pay for" surely applies
here,
>but any idea of what is a good $ threshold?
>
>Peter
>
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